According to The Pizza Underground's Bandcamp page, the group recorded their album at Culkin's house last month. Songs like "Take a Bite of the Wild Slice," "I'm Waiting for Delivery Man" and "Papa John Says" cover tracks from both The Velvet Underground and its late frontman Lou Reed -- with pizza-themed lyrics, of course.
Culkin is credited with percussion and vocals. You can also hear him rip through a kazoo solo on "Take a Bite of the Wild Slice."
The band also has a pretty delightful Tumblr, which features redesigned Velvet Underground album covers that incorporate everyone's favorite party food.
[The Guardian, NME]